The course is intended to offer a panoramic view, as global as possible, of Electronics and its implications on different society environments. The historic way has been adopted to serve as the conductive thread to introduce and analyse different possible approaches to satisfy social needs. Technical developments and their achievements are to be unveiled, but also reasons for technologies giving way to others. Thus, students should realise that knowledge does not end on what can be achieved with a given technique. So important is knowledge of its limits and how can it be replaced as it reaches its zenith. This approach should the student to be accustomed to learn from history lessons and to realise that history ignorance makes sometimes errors to recur. Another lesson to be learned is, as well, that it is frequently the society which determines the way to follow in spite of technical people predictions.